Plaster-board wall construction



Jan. 24,1928.

I c. ABSMEIER PLASTER BOARD WALL c'ouscrmicflou Original Filed 0612.12. 1925 3' .3 l gfi; IhuenTm" 60H Abamaim wq W Patented Jan. 24, 1928.

UNITED STATES PATENT OFFICE.

PLASTER-BOARD WALL CONSTRUCTION.

Application filed October 12, 1925, Serial No. 61,890. Renewed November 10, 1927.

This invention relates to a plaster board wall construction and is particularly con cerned with the production of an absolutely smooth wall made from plaster board and a reinforcement and covering of the joint where the edges of the boards come together so that the board will not separate atsaid joint and the joint is absolutely smooth and ies in the same plane with the inner surface as the wall board. This makes it possible to finish the inner surfaces of the wall in any desired manner, as by applying wall paper or any of the various wall finishes which may be used, no cracks, depressions or other defects showing in any manner in the Wall when made in accordance with my invention.

For an understanding of the invention reference may be had to the following description taken in connection with the accompanying drawing, in which,

Fig. 1 is a perspective view partly in section illustrating the method of attaching the wall board to studding supports and the 1 manner in which the joint at the meeting edges of the Wall board is reinforced and covered, and

Fig. 2 is a fragmentary enlarged horizon 11 sejction through the constructlon shown in 1 Eike reference characters refer to like parts in the different fi ures of the drawing. The wall board use is made preferably from a plaster of Paris composition, indicated at 1, and is between one-quarter to onehalf of an inch thick usually. This plaster body 1 is covered at its inner and outer sides by a. fibrous aper cover 2. Each board at its vertical e ges is decreased in thickness as indicated at 3, the decrease in thickness being provided for at one side of the board, the opposite side of the board being in the same plane throughout. As shown in the drawing the paper covering 2 passes around the vertical edges of the board so that the edges are covered and the covering is of one piece. So far as the present invention is concerned, however, the vertical edges of the board may be left raw and uncovered, this invention being applicable to such type of paper board as well as to the one shown.

In using plaster board of this character the same is secured to vertical studding 4 or similar supports, the thinner edge portions 3 of the plaster board lying against the face of the studding and the edges of two adjacent boards abutting substantially midway between the opposite sides of the studding. Nails 5 may be used to secure the plaster board to the studding as shown.

This,leaves a shallow vertical trough in the face of the wall where each joint is made. In this trough a thin strip 6 of tough paper or like material is located and cemented to the adjacent outer ortions of the paper cover which covers t e plaster body of the board. The paper strip 6 at its outer face lies slightly within the plane of the paper covers for the thicker portions of the board and this paper strip and the adjacent recesses and each edge thereof are filled with a suitable composition 7, which in the art is known as joint filler. This composition is plastic and can be shaped readily to fill all of the interstices at the edges of the strip 6 and it is also very adhesive so that a perfectly smooth and unbroken surface can be made, the joint filler later hardening and set tingto rigid condition.

The joints and adjacent edges of plaster board sections making up a wall in this manner are rendered perfectly smooth, no cracks, depressions or other defects appearing in the wall. Moreover, the joint is very strongly reinforced and cracks at the joint, due to later settling of the wall or to vibrations and strains to which the wall may be subjected, do not readily appear as is the case when the abutting edges of two pieces of plaster board are merely filled with a very small amout o thejoint filler composition. This construction is exceptionally practical in all respects. The invention is defined in the appended claims and is to be considered as comprehensive of all forms of structure coming within their scope.

I claim:

1. A wall construction comprising two sheets of plaster board having edge portions thereof reduced in thickness, the reduced edges of said plaster board being located in abutting relation to each other. a support against which the plaster board is located, means for securing the plaster board to said support, a strip of paper or like material lying over and bridging the joint between the adjacent edges of said plaster board, said strip being cemented to the plaster board,

fill) and a plastic composition covering said strip and filling therecesses at the edges thereof and formed to lie flush with the inner faces of the plaster board, substantially as described.

2. In combination with a studding, two sheets of plaster board each having a plaster body and a paper covering at opposite faces thereof located with edges abutting against said studding, the adjacent edge portions of said plaster board being reduced in thickness at their inner faces whereby an elongated shallow recess or trough is made at the adjacent edge portions of said plaster board, means for securing the board to the studding, a flat strip of material located in said recess and against the plaster board the full length thereof, means for cementing said strip to the paper covering of the plaster board, and a plastic composition capable of setting and hardening, covering said strip and with said strip completely filling said recess or trough and lying flush at its outer surface with the inner faces of said boards, substantially as described.

3. In combination with studding, two sheets of plaster board having adjacent edge portions abutting and lying against a face of studding, said abutting edge portions of the boards being reduced in thickness at their inner faces, means for securing the plaster board to the studdin means extending lengthwise of and bridging the joint between the adjacent edges of the plaster board, said means lying entirely below the inner faces of the thicker portions of said board, means for permanently securing said bridging means to the plaster board, and means filling the remaining space over and at the edges of said bridging means to form a plane surface flush with the inner faces of the thicker portions of said plaster board, substantially as described.

In testimony whereof I aflix my signature.

CARL ABSMEIER. 

